Green Bay, Wisconsin Braces for Life-Threatening Cold as Wind Chills Drop 25 to 45 Below Zero Overnight
GREEN BAY, WISCONSIN — Dangerous Arctic cold remains firmly locked over Green Bay overnight, with the National Weather Service confirming that an Extreme Cold Warning will stay in effect until 9 a.m. Saturday as wind chills plunge between 25 and 45 degrees below zero.
Forecasters say only minor changes have been made to the forecast, meaning the worst of the cold is ongoing and persistent, not easing quickly.
How cold it will get in Green Bay
According to the latest forecast data:
- Overnight low temperatures: around 15 to 20 degrees below zero
- Wind chills: dropping as low as −35°F to −45°F
- Coldest conditions: late night through early Saturday morning
These values fall well into the life-threatening range, where exposed skin can develop frostbite in as little as 5 to 10 minutes.
Why this cold is especially dangerous
The combination of bitter air temperatures and steady winds is dramatically increasing the risk level. Even brief outdoor exposure can become dangerous, particularly for:
- Anyone without proper cold-weather gear
- Children and elderly residents
- People working outdoors or traveling overnight
Vehicles may also struggle in these conditions, with increased risk of battery failure, fuel line freezing, and mechanical issues.
What residents should do
Officials urge Green Bay residents to take this event seriously:
- Limit time outdoors as much as possible
- Dress in multiple insulated layers if travel is unavoidable
- Cover all exposed skin, including face and hands
- Check on vulnerable neighbors and family members
- Ensure pets are kept indoors
Emergency officials emphasize that this is not typical winter cold, but a high-impact Arctic outbreak capable of causing serious harm.
When conditions improve
Wind chills are expected to slowly moderate after sunrise Saturday, but dangerous cold will linger into the morning hours before gradual improvement begins later in the day.
Bottom line
Green Bay remains under extreme cold conditions, with dangerously low wind chills continuing through early Saturday morning. This is a serious cold-weather emergency, and precautions should be taken to avoid exposure.
Stay with WaldronNews for continued Green Bay–specific updates as this Arctic outbreak persists.